$ git clone -n https://src.fedoraproject.org/rpms/kdelibs.git /var/lib/mock/f42-build-3460558-45515/root/chroot_tmpdir/scmroot/kdelibs
Cloning into '/var/lib/mock/f42-build-3460558-45515/root/chroot_tmpdir/scmroot/kdelibs'...
$ git fetch origin 7420cf3f2a8b61becdd18db3752b1d69088eb90e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdelibs
 * [new ref]         7420cf3f2a8b61becdd18db3752b1d69088eb90e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7420cf3 Fixed rhbz#2338968, Change path to certificates file